<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Bootstrap Modal</title>
    <link rel="stylesheet" href="bootstrap-5.3.0-alpha1-dist/css/bootstrap.min.css">
</head>
<body>
    <!-- 触发弹出框的按钮 -->
    <button type="button" class="btn btn-primary" data-toggle="modal" data-target="#myModal">
        弹出框
    </button>

    <!-- 弹出框内容 -->
    <div class="modal fade" id="myModal" tabindex="-1" role="dialog" aria-labelledby="myModalLabel">
        <div class="modal-dialog" role="document">
            <div class="modal-content">
                <div class="modal-header">
                    <h5 class="modal-title" id="myModalLabel">弹出框标题</h5>
                    <button type="button" class="close" data-dismiss="modal" aria-label="Close">
                        <span aria-hidden="true">&times;</span>
                    </button>
                </div>
                <div class="modal-body">
                    <p>这里是弹出框的内容。</p>
                </div>
                <div class="modal-footer">
                    <button type="button" class="btn btn-secondary" data-dismiss="modal">关闭</button>
                    <button type="button" class="btn btn-primary">保存</button>
                </div>
            </div>
        </div>
    </div>

    <script src="js/jquery-3.7.1.js"></script>
    <script src="bootstrap-5.3.0-alpha1-dist/js/bootstrap.min.js"></script>
</body>
</html>